Gas fire-place



(No Model.) v

T. T. MONISH.

GAS FIRE PLACE. No. 374,801. Paftented Dec. 13,1887.

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ImlenTnr- 45 device-such, for example, as that shown in UNITED STATES PATENT OFFICE.

THOMAS T. MONISH, OF ALLEGHENY CITY, PENNSYLVANIA.

GAS FIRE-PLACE.

. EPECIPICATION forming part of Letters Patent No. 374,801, dated December 18, 1887.

Application filed May 14, 1886. Serial No. 202,139. (No model.)

To all whom it nmy concerm.

Be it known that I, THOMAS T. MoNIsH, of Allegheny City, in the county ofAllegheny and State of Pennsylvania, have invented a new and useful Improvement in Gas Fire-Places; and I do hereby declare the following to be a full, clear, and exact description thereof.

The object of my invention is to improve the construction of gas fire-places to economize the heat, and, secondarily, to provide means for nioistening the atmosphere of the room in which the fire-place is situate.

To enable others skilled in the art to make and use my invention, I will now describe it by reference to the accompanying drawings, in which-- Figure 1 is a perspective view, partly in section, of a fire-place constructed in accordance with my invention. Fig. 2 is a vertical section of the same, illustrating a modified form of vapor-vent. Fig. 3 is a detail view. Fig. 4 is a perspective view of the rear side of the fire-place. Fig. 5 is an enlarged vertical section ofthe valve 8 which is shown in Fig. 2.

Like letters of reference indicate like parts .in each.

which forms. the front side of a diving-flue, (Z,

though the back may beplain or upright or corrugated, if desired. The flue d opens into the chimney e at its lower end, being separated from the chimney by a partition formed of metal or other suitable material, in the rear of which is a water chamber or back, f, of any desired shape. At the upper end of the flue (Z is an opening controlled by a damper, g, by which a direct communication is had between the fire-place b'and chimney e. The waterback f is supplied with water by apipe, h, and its height in the water-back may, if desired, be indicated by a suitable gage or indicator, i, placed-at the side of the fire-front; or it may be ascertained by other suitable or known Fig. 2. The pipe h communicates with the upper part of the water-back f, and extends therefrom through the fire-front above the fireplace, and is provided with a perforated cap,

h, and its object is to discharge the vapor from 'mitted to escape up the chimney e. The

dampers g and It can be operated from the outside by meansof suitable crank-levers, Z m, as-

indicated in-Figs. l and 4.

Any suitable gas-burner may be used in this fire-place. Ihave shown a common perforated T-pipe, a, over which is placed a shield or cap, 0, perforated in the vertical side to admit air, and also slotted or perforated in-its upper side adjacent to the fire-back c to permit the escape of the combined air and gas which burnsin the fire-place b. The flame ascends in asheet through the fire-place, hugging the fire-back. c by reason of the inclination or curvature of the latter, passing the upper edge of the fire-back, and entering the damper g. \Vhen. the draft in the chimney c is established, the damper 9 may be closed, and the flame will then be drawn down through the diving-flue d and up back of the waterback f. By this arrangement the flame is caused to impinge on both sides of the fireback, and thus to cause a much greater radiation of heat than if it should come into contact with only one side and then escape directly into the chimney-flue. Theflame also circles around the water-back f and generates vapor, which is discharged into the room, as described. Instead of having the upper side of the water-back open, a pipe, 8, may be extended upward therefrom into the chimney, the upper end terminating above the vaporpipe h, as shown in Fig. 2. This pipe is controlled by a damper or valve, 8, so as to regulate the discharge of vapor from the waterback into the chimney. This valve 8 is operated by a rotary stem, 8, which extends through the fluewvall, and has at its outer end a crank o'r handle, 8 whereby it is turned, Fig. 2. In Fig. 5 I show the valve 8' in. detail. The indicator 2 may then be omitted,

chimney from the opening controlled by the and the water-back filled from time to time through the pipe h, as it will be apparent to the attendant when the back is filled by the rising ofthe water in the pipe h.

A basket grate filled with fire-brick, 8w, may be used as a burner apparatus in connection with the other parts of the device; or any other burner apparatus-such, for example, as the terracotta logs-may be used.

I have shown the fire-back a made concave and forwardly inclined, and think that this is the preferable construction. The function of the curvature is to concentrate or focalize the radiated heat upon the floor in front of the fire-place, thus causing the lower strata of air to receive the initial heat. The function of the inclination of the fire-back is not only to direct the heat toward the floor, but also to cause the flame to hug the back as it rises to the chimney-flue. The combustion is thus hettered, and more sensible heat is obtained from a given amount of gas.

I do not limit myself to the construction of the burner, nor of the cap 0. 4 The latter 0perates to form an airmixing chamber with the gaspipe, in which the gas from the pipe is properly mixed with the air from the outside, the latter being more or less heated by passing through the chamber formed by the cap 0. If desired, the cap 0 may be made integral or in connection with the burner-pipe n. Nor do I limit myself to the particular form of waterback shown, as it is apparent that the shape of the water-back may be varied in many ways.

I claim- 1. A gas fire-place or stove having a divingflue, with a water-back arranged between the diving-flue and chimney, and a vaporizingpipe leading therefrom into the room, substantially as and for the purposes described.

2. A 'gas fire-place having a water-back, with vaporizing-pipes leading out into the room, and an opening leading from the waterback into the discharge-flue controlled by a damper 0r valve, substantially as and for the purposes described. V

3. In a gas fireplace, a fire-back, agas-pipe at the base of the fire-back, and a removable cap or shield covering the gas-pipe and having an outlet for the gas adjacent to the fire-back, substantiallyas and for the purpose specified.

4. In a gas fire-place, a fire-back, c, a partition between fire-back and the chimney extending above the top, but not as far as the bottom, of said fire-back, and the damper g placed at the top of said partition, in combination with a Water-back, f, situated between the said partition and the chimney, substantially as and for the purpose specified.

In testimony whereof I have hereunto set my hand this 13th day of May, A. D. 1886.

THOMAS T. MONISH.

Witnesses:

W. B. CORWIN, THOMAS W. BAKEWELL. 

